Title : A role for the mitochondrial deacetylase Sirt3 in regulating energy homeostasis.

Pub. Date : 2008 Sep 23

PMID : 18794531






5 Functional Relationships(s)
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1 Here, we demonstrate a role for the mitochondrial NAD-dependent deacetylase Sirt3 in the maintenance of basal ATP levels and as a regulator of mitochondrial electron transport. Adenosine Triphosphate sirtuin 3 Mus musculus
2 We note that Sirt3(-/-) mouse embryonic fibroblasts have a reduction in basal ATP levels. Adenosine Triphosphate sirtuin 3 Mus musculus
3 Furthermore in wild-type mice, the resting level of ATP correlates with organ-specific Sirt3 protein expression. Adenosine Triphosphate sirtuin 3 Mus musculus
4 Remarkably, in mice lacking Sirt3, basal levels of ATP in the heart, kidney, and liver were reduced >50%. Adenosine Triphosphate sirtuin 3 Mus musculus
5 These results implicate protein acetylation as an important regulator of Complex I activity and demonstrate that Sirt3 functions in vivo to regulate and maintain basal ATP levels. Adenosine Triphosphate sirtuin 3 Mus musculus